Elastic ventilated tubular envelope



June 27, 1950 s. PENKSA ELASTIC VENTILATED TUBULAR ENVELOPE Filed Dec.4, 1947 INVENTOR.

Stanley Pezzirsar M 7. 1%

Patented June 27, 1950 UNITED STATES PATENT OFFICE ELASTIC VENTILATEDTUBULAR ENVELOPE Stanley Penksa, Yonkers, N. Y.

Application December 4, 1947, Serial No. 789,658

2 Claims.

This invention relates to a covering or shield for organs of the humanbody to protect the organ over which the device is placed fromcontamination and soiling. The purpose of the invention is solely forsanitary purposes and for the prevention of contagious diseases.

When an organ of the human body is inserted into a cavity in anotherbody, there is always danger of contagion unless the entire organ has acovering there-over which covering cannot be dislocated or damaged andcannot slip off the organ while it is within the cavity in another body.

As an example, physicians in examining cavities in the human bodysometimes insert a finger having an elongated cot thereover into thecavity for inspection purposes, resulting in secretions from the bodypassing onto the hand of the physician at a point which is not coveredby the cot covering the finger. In order to eliminate this source ofcontamination some physicians use a rubber sack, much larger thanthefinger, which is supposed to fit over the hand also of the physician,but this is clumsy and interferes with the proper inspection of thecavity under survey.

Therefore, rubber gloves or cots which cover not only the front portionof a finger but which extend over the entire length of the finger havebeen used. Such cots or gloves should fit tightly and they should be ofvery thin material in order to interfere as little as possible with thephysicians work. When inserting a finger into a tight fittinglongitudinal sheath or cot of thin resilient material, or when puttingon a tight rubber glove of thin material, usually the sheathing ispushed slowly over the finger. Thereby the air within the glove fingerportions or within the cot is compressed toward its closed end portion,so that there will occur an air cushion at the finger tips. This ishighly objectionable because it impairs to a large extent the physicianssense of touch at his finger tips, or an attempt of squeezing out theair results in a piercing or damaging of the cot at its front end, thusexposing the inserted finger to the danger of contamination and soiling.

It is, therefore, an object of this invention to provide a rubber cothaving means for preventing an internal pressure and accumulation of airwithin the closed end portion of the cot after a finger has beeninserted therein.

Another object of the present invention is the provision of an elasticventilated tubular envelope whose bottom portion is provided with anoutwardly bulging extension, and which is provided adjacent saidextension with self-closingperforations adapted to open up onlytemporarily under the influence of an excessive interior pressure withinthe sack and to close automatically upon disappearance of the interiorair pressure, so that a physician" may squeeze the air out of the fingercot or the finger portions of a glove without damaging the same.

A further object ofthe present invention is the provision of an elasticventilated tubular envelope which is simple-in construction andinexpensive to manufacture, sothat it can be sold at practically thesame price as similar hitherto manufactured articles.

With the foregoing and other objects in view. which will appear as thedescription proceeds,

the invention consists of certain novel details of construction andcombinations of parts hereinafter more fully described and pointed outin the claims, it being understood that changes may be made in theconstruction and arrangement of parts without departing from the spiritof the invention as claimed.

In the accompanying drawings the preferred forms of the invention havebeen shown.

In said drawings:

Figure 1 is a side view of a fraction of a finger cot or glove fingerconstructed in accordance with the present invention;

Fig. 2 is a bottom plan view of the same;

Fig. 3 is a sectional view on the line 3-3 of Fig. 2;

Fig. 4 is an enlarged fractional view showing a portion of the cot open;and

Fig. 5 is anenlarged fractional view showing a portion of the cotclosed.

Similar reference characters refer to similar parts throughout theseveral views.

In the drawing the numeral I denotes a fraction of an elastic ventilatedtubular envelope of the character described, whose closed end isprovided with an outwardly bulging extension 2 adapted for yielding tostresses when the cot l is tightly worn on a finger and also adapted forreceiving a certain amount of air, thus constituting a pressure dome inwhich air may accumulate before it is released. Adjacent the extension 2there are tapered perforations 4 whose outer diameter is zero as long asno stretching of the bottom resulting from excessive interior pressureoccurs.

The combination of the extension 2 with the perforations 4 alone mightafford a proper ventilation and self-closing non-return valve action.'

However, I prefer to provide the perforations 4 also with preferablycup-shaped resilient thin flaps 3 whose major edge portions are securedto the outer side of the cot I, while a small section v 5 of each flap 3rests loosely upon the cot l Normally the edge portions of the flaps 3surround entirely the perforations 4 and constitute additional closuremeans, as may be seen in Fig. 5 and at the left hand side of the Figs. 1and 3. If an right hand side of Figs. 1 and 3) so that the air canescape.

The flaps 3 can be attached to the cot l by pasting, vulcanizing or thelike, or they maybe made as a unit therewith.

Since certain changes may be made in the above 1 article and differentembodiments of the invention could be made without departing from thescope thereof, it is intended that all matter contained in the abovedescription or shown in the accompanying :drawing shall be interpretedas illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended tocover all of the generic and specific features of the invention hereindescribed, and all statements of the scope of the invention which as amatter-of 'language'might be said to all'therebetween.

Having thus fully described my said invention, what I claim as new anddesire to -secure by Letters Patentis:

1. In a rubber article of the character described having the form of aresilient sack Whose bottom portion is provided with an outwardlybulging extension, inwardly diverging perforations adjacent saidextension whose outer diameter is zero as long as no stretching of thebottom resulting from excessive interior pressure occurs, the portionssurrounding said perforations being provided with self closing valvemeans. I

2. A device of the character described comprising an elastic tubularenvelope having the form of a resilient sack whose bottom portion isprovided with an outwardly bulging extension, adjacent said extensionthe envelope being provided withconical perforations whose diameter atthe outer side of the sack is substantially zero as long as nostretching of the bottom resulting from excessive interior pressureoccurs, the portions surrounding said perforations being provided withresilient flaps Whose major edge portions are secured to the outer sideof the sack while a small edge sectionof each flap rests loosely upon aportion of the sack, the edge portions of said flaps surrounding saidperforations, and said flaps being adapted for normally closing saidperforations.

STANLEY PENKSA.

-REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS 211,350 Germany June 28, 1909

